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Finding the Fourth Proportional to 301,616.80, 452,392.80 and 80,000.80

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Solution

The fourth proportional to 301,616.80, 452,392.80 and 80,000.80 is: 119,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,616.80 : 452,392.80 = 80,000.80 : x
  2. Step 2: Convert to fraction form
    301,616.80/452,392.80 = 80,000.80/x
  3. Step 3: Cross multiply
    301,616.80x = 452,392.80 × 80,000.80
  4. Step 4: Simplify right side
    301,616.80x = 36,191,785,914.24
  5. Step 5: Solve for x
    x = 36,191,785,914.24/301,616.80
  6. Step 6: Final answer
    x = 119,992.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.